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硝氨基

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Is a research and development, production, trade and service-based economy of foreign trade entities, chemical raw materials to the professional operation of the main company's existing production of AC blowing agent, ferric chloride, hydrated Hydrazine, p-nitrophenol, m-phenylenediamine, phosphorus trichloride, phosphorus oxychloride, 2,4 - diamino benzene sulfonate, sodium dichloro isocyanurate, N-methyl-o-phenylenediamine Second hydrochloride fine chemical products such as the ability, and are obtained ISO9001 international quality system certification.

济南华尔沃进出口贸易有限公司是一家集研发、生产、贸易、服务于一体的外贸型经济实体,以专业经营化工原料为主,公司现有生产AC发泡剂、三氯化铁、水合肼、对硝基苯酚、间苯二胺、三氯化磷、三氯氧磷、2,4—二氨基苯磺酸钠、二氯异氰脲酸钠、N-甲基邻苯二胺二盐酸盐等精细化工产品的能力,并且均以取得ISO9001国际质量体系认证。

During the process of imidacloprid preparation, using phosphorus pentachloride dehydration and greatly excess 2-nitroiminoimidazolidine, the yield may reach 90%, and the purity is over 95%, so this a fairly good synthesis method.

吡虫啉合成中用五氧化二磷脱水法和过量2-硝基亚氨基咪唑烷法收率接近90%,纯度达95%以上,是较佳的合成方法。

METHOD Dofetilide was synthesized by steps of reaction (substitution ,reduction, methylsulfonylation and methylammoniation, etc) from p-nitrophenol and p-amino phenethyl alcohol.

以对硝基苯酚为起始原料,经取代、还原、甲磺酰化等反应制得 4甲磺酰苯胺(5 );以对氨基苯乙醇为起始原料,经甲磺酰化、甲氨化等反应制得 4 甲磺酰苯胺(8),再与5经取代反应制得多非利特。

The charges on the substituents affected OWF〓 greatly for some azobenzene derivatives, pyridone derivatives, nitrodiphenylamine derivatives, some reactive dyes and 1, 4-diamino anthraquinone derivatives, in this instance, OWF〓 changed linearly with the change of the charges.

2给电子取代基或吸电子取代基的电荷对OWF〓有较大的影响,OWF〓随电荷的变化而线性变化,如某些偶氮苯衍生物、吡啶酮类染料母体、硝基二苯胺类化合物、偶合组分和重氮组分之间夹角α变化不大的活性染料、1,4—二氨基蒽醌衍生物等。

The dependence of the radiolabeling yield of ~99mTcO-NIET and 99mTcN-NIET on pH, temperature, ligand concentration, the amount of added stannous chloride, and so on was screened by the normal procedure.

合成了一种新的氨荒酸类化合物,2-(4-硝基咪唑)-乙基二硫代氨基甲酸钾,研究了影响99mTcO-NIET以及99mTcN-NIET标记率的相关因素。

Aminobenzothiazoleswere diazotized and then coupled with active methylenecompounds to form a kinds of new hydrazones.

苯基硫脲在浓硫酸中,先在溴作用下氧化合环,再直接硝化,得到产率95%,纯度98%的2-氨基-6-硝基苯并噻唑。

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6~58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1,3,4-噻二唑用亚硝酰硫酸进行重氮化,再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1,3,4-噻二唑类化合物,其中16个为新化合物,收率为19.6~58.8%。

Long-term supply: amino paint, distempers Mastics,áá, acrylic paint, silicone heat-resistant paint, epoxy paint, hammer finish, anti-corrosion paint, automobile paint, polyester paint, latex paint,·á.

长期供应:●氨基漆、硝基漆、醇酸漆、丙烯酸漆、有机硅耐热漆、环氧漆、锤纹漆、防腐漆、汽车漆、聚酯漆、乳胶漆、防火漆。

The main varieties are: Blending alkyd paint, alkyd varnish, alkyd enamel, paint phenolic resin, amino paint, distempers Mastics, high-grade polyurethane paint, acrylic paint, metallic paint, car paint, bitumen paint, polyester wood at the end of paint and finish, the middle-grade interior and exterior wall latex paint.

主要品种有:醇酸调合漆、醇酸清漆、醇酸磁漆、酚醛树脂漆、氨基漆、硝基漆、高档聚氨酯漆、丙烯酸漆、金属漆、汽车漆、沥青漆、木器聚酯底漆及面漆、中高档内外墙乳胶漆。

The synthetic product was proved by IR and MS. The translation ratio of nitrobenzene was about 90%by titrating amino group value. The selectivity of p-aminophenol was 80%.

合成产品通过IR、MS确认其结构,并通过滴定氨基值计算出硝基苯的转化率为90%左右,产品的选择性达80%。

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I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。